docs: def search(self, patterns, start=30, limit=1000, include_category=False):
          """Performs pattern searches against the Investigate database.
  
          Args:
              patterns: An enumerable of RegEx domain patterns to search for
              start:   How far back results extend from in days (max is 30)
              limit:   Number of results to show (max is 1000)
              include_category: Include OpenDNS security categories
          Returns:
              An enumerable of matching domain strings
          """
          api_name = 'opendns-patterns'
          fmt_url_path = u'search/{0}'
          start = '-{0}days'.format(start)
          include_category = str(include_category).lower()
          query_params = {
              'start': start,
              'limit': limit,
              'includecategory': include_category,
          }
          return self._multi_get(api_name, fmt_url_path, patterns, query_params)